Those using KMM for iOS development - how have you worked with / around these errors?

Exception doesn't match @Throws-specified class list and thus isn't propagated from Kotlin to Objective-C/Swift as NSError.
It is considered unexpected and unhandled instead. Program will be terminated.
Uncaught Kotlin exception: com.apollographql.apollo.ApolloNetworkException: Failed to execute GraphQL http network request

Seems a built in part of the KMM framework is if your Kotlin function doesn’t mark @Throws() with the exception, KMM crashes your app. There’s no compile time safety enforcing that only exceptions annotated in @Throws, so it is possible that an exception is missed that later ends up crashing your iOS application. This is undesired behaviour, as if we miss documenting an exception, it can crash in the wild. In iOS, we typically just show an error message when an unexpected error arises. Is there a way to ensure that Kotlin never crashes us in this case?

why is there not a

sumOf

for floats? Here is what intellij shows me the signature is

public inline fun <T> Iterable<T>.sumOf(
    selector: (T) -> Double
): Double

for instance, this fails

entries.sumOf {
            5f
        }

but it works if I do this

entries.sumOf {
            5f.toDouble()
        }

hi all, I'm trying to use a BottomSheetScaffold to achieve an appearance similar to Google maps (see attached pics). it's simple enough to add the bottom sheet content with rounded edges, but I am having trouble replicating the shadow effect that you see in the screens provided. Will provide code samples in reply

Is it possible to use Fastlane to distribute CMP/KMP desktop apps somehow? In my case would like to have Mac OS app only to start with. I use Firebase App Distribution for iOS and Android today doing this.

Hi Folks, I have a ComposeView (with LazyRow content) embedded in a LinearLayout with a weight. And I get this error

Horizontally scrollable component was measured with an infinity maximum width constraints, which is disallowed. One of the common reasons is nesting layouts like LazyRow and Row(Modifier.horizontalScroll()). If you want to add a header before the list of items please add a header as a separate item() before the main items() inside the LazyRow scope. There are could be other reasons for this to happen: your ComposeView was added into a LinearLayout with some weight, you applied Modifier.wrapContentSize(unbounded = true) or wrote a custom layout. Please try to remove the source of infinite constraints in the hierarchy above the scrolling container.

I'm surprised this is an invalid combination. 🤔 My understanding is there are two passes to weighted children of linearLayouts, the first one passes 0 and then the second passes the appropriate width by sharing the available space with the weighted children However, on debugging (using BoxWithConstraints) it seems that on the initial pass the maxWidth passed to the ComposeView is Infinity. Which causes the error above. Is there any recommended approach for having Scrollable content embedded in linearLayouts with width? I have a hack which is using

Modifier.widthIn(0.dp, 0.dp)

Which works because it is a more restrictive constraint than the (0, Infinity) constraint passed on the first measure phase of the linearlayout But seems weird that this is not supported by default.

I'm using ktor client with the CIO engine for my kt-search client (a rest client for opensearch and elasticsearch). We recently switched to this with our main application (Spring Boot) and now running our multi threaded tests (we run with ten or so junit threads), I get a few weird exceptions that randomly fail small portion of the tests (see stacktrace below) After a bit of digging, I narrowed the problem down to the CIO engine and I suspect it's not completely threadsafe somehow. Switching to the Java engine makes the problem go away completely. I haven't tried any of the other engines. The previous version of the client would have used Elastic's RestHighLevel client, which in turn uses Apache http client if I recall correctly. So the main change here is that we are now using a different Rest client. Looking at the documentation, I wonder if there is any guidance on pros/cons of each engine. There seem to be a lot of them at least. For reference, this is the stack trace. It looks to me like different threads are ending up trying to open the same port somehow or messing with the same connection.

java.net.BindException: Can't assign requested address
	at java.base/sun.nio.ch.Net.connect0(Native Method)
	at java.base/sun.nio.ch.Net.connect(Net.java:579)
	at java.base/sun.nio.ch.Net.connect(Net.java:586)
	at java.base/sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:853)
	at io.ktor.network.sockets.SocketImpl.connect$ktor_network(SocketImpl.kt:44)
	at io.ktor.network.sockets.ConnectUtilsJvmKt.connect(ConnectUtilsJvm.kt:21)
	at io.ktor.network.sockets.TcpSocketBuilder.connect(TcpSocketBuilder.kt:37)
	at io.ktor.client.engine.cio.ConnectionFactory.connect(ConnectionFactory.kt:29)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invokeSuspend(Endpoint.kt:156)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invoke(Endpoint.kt)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invoke(Endpoint.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturnIgnoreTimeout(Undispatched.kt:100)
	at kotlinx.coroutines.TimeoutKt.setupTimeout(Timeout.kt:146)
	at kotlinx.coroutines.TimeoutKt.withTimeoutOrNull(Timeout.kt:103)
	at io.ktor.client.engine.cio.Endpoint.connect(Endpoint.kt:164)
	at io.ktor.client.engine.cio.Endpoint.makeDedicatedRequest(Endpoint.kt:98)
	at io.ktor.client.engine.cio.Endpoint.execute(Endpoint.kt:62)
	at io.ktor.client.engine.cio.CIOEngine.execute(CIOEngine.kt:84)
	at io.ktor.client.engine.HttpClientEngine$executeWithinCallContext$2.invokeSuspend(HttpClientEngine.kt:99)
	at ???(Coroutine boundary.?(?)
	at io.ktor.client.engine.HttpClientEngine$DefaultImpls.executeWithinCallContext(HttpClientEngine.kt:100)
	at io.ktor.client.engine.HttpClientEngine$install$1.invokeSuspend(HttpClientEngine.kt:70)
	at io.ktor.client.plugins.HttpSend$DefaultSender.execute(HttpSend.kt:138)
	at io.ktor.client.plugins.HttpRedirect$Plugin$install$1.invokeSuspend(HttpRedirect.kt:61)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$3.invokeSuspend(HttpCallValidator.kt:147)
	at io.ktor.client.plugins.HttpSend$Plugin$install$1.invokeSuspend(HttpSend.kt:104)
	at io.ktor.client.plugins.DefaultTransformKt$defaultTransformers$1.invokeSuspend(DefaultTransform.kt:53)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$1.invokeSuspend(HttpCallValidator.kt:126)
	at io.ktor.client.plugins.HttpRequestLifecycle$Plugin$install$1.invokeSuspend(HttpRequestLifecycle.kt:35)
	at io.ktor.client.HttpClient.execute$ktor_client_core(HttpClient.kt:191)
	at io.ktor.client.statement.HttpStatement.executeUnsafe(HttpStatement.kt:108)
	at io.ktor.client.statement.HttpStatement.execute(HttpStatement.kt:47)
	at com.tryformation.api.graphql.FormationClient.executeRaw(FormationClient.kt:1037)
	at com.tryformation.api.graphql.FormationClient.execute(FormationClient.kt:919)
	at com.tryformation.graphqlapi.TestTeamAndClientCreator.createTeam$suspendImpl(APITest.kt:211)
	at com.tryformation.graphqlapi.analytics.ArmyTestFixture.create(ArmyTestFixture.kt:272)
	at com.tryformation.graphqlapi.analytics.ArmyTestFixture$armyWorkspace$2$1.invokeSuspend(ArmyTestFixture.kt:269)
	at com.tryformation.graphqlapi.TestbeansKt$runTest$1.invokeSuspend(testbeans.kt:257)
Caused by: java.net.BindException: Can't assign requested address
	at java.base/sun.nio.ch.Net.connect0(Native Method)
	at java.base/sun.nio.ch.Net.connect(Net.java:579)
	at java.base/sun.nio.ch.Net.connect(Net.java:586)
	at java.base/sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:853)
	at io.ktor.network.sockets.SocketImpl.connect$ktor_network(SocketImpl.kt:44)
	at io.ktor.network.sockets.ConnectUtilsJvmKt.connect(ConnectUtilsJvm.kt:21)
	at io.ktor.network.sockets.TcpSocketBuilder.connect(TcpSocketBuilder.kt:37)
	at io.ktor.client.engine.cio.ConnectionFactory.connect(ConnectionFactory.kt:29)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invokeSuspend(Endpoint.kt:156)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invoke(Endpoint.kt)
	at io.ktor.client.engine.cio.Endpoint$connect$2$connect$1.invoke(Endpoint.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturnIgnoreTimeout(Undispatched.kt:100)
	at kotlinx.coroutines.TimeoutKt.setupTimeout(Timeout.kt:146)
	at kotlinx.coroutines.TimeoutKt.withTimeoutOrNull(Timeout.kt:103)
	at io.ktor.client.engine.cio.Endpoint.connect(Endpoint.kt:164)
	at io.ktor.client.engine.cio.Endpoint.makeDedicatedRequest(Endpoint.kt:98)
	at io.ktor.client.engine.cio.Endpoint.execute(Endpoint.kt:62)
	at io.ktor.client.engine.cio.CIOEngine.execute(CIOEngine.kt:84)
	at io.ktor.client.engine.HttpClientEngine$executeWithinCallContext$2.invokeSuspend(HttpClientEngine.kt:99)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:42)
	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)

Hey Kotlin Kover vs Jacoco, what are the general differences in coverage reporting. Those Kover remove the pain points of incorrect reporting due to the byte code generation of kotlin

Hello 👋 I’m having issue with gradle sync in Android Studio, I started using TOML version catalog format and inside my build.gradle.kts I always get an error:

Caused by: ScriptCompilationException(errors=[ScriptCompilationError(message=Unresolved reference: libs, location=/Users/username/.gradle/.tmp/gradle-kotlin-dsl-8359750362388470244.tmp/build.gradle.kts (13:20)),

My gradle setup looks like this:

plugins {
    `kotlin-dsl`
    id("com.osacky.doctor") version "0.7.0"
}

repositories {
    google()
    jcenter()
    mavenCentral()
}

dependencies {
    implementation(libs.android.gradle)
    implementation(libs.kotlin.gradle.plugin)
    implementation(libs.kotlin.serialization)
    implementation(libs.sqldelight.gradle.plugin)
}

kotlin {
    explicitApi()
}

It works completely fine if I build it from cli. Is this some known error of AS and toml version catalog compatibility or I’m doing something wrong? Gradle wrapper version: 7.1.1 AS: 2021.1.1 Canary 3

Is there a way to force gradle to recompile Kotlin buildSrc? I keep making changes there, but then they’re not picked up

I'm getting these kind of errors:

Cannot access built-in declaration '...'. Ensure that you have a dependency on the Kotlin standard library

I'm confused as to why it can't find the stdlib?